> Because there are legitimate reasons why Facebook might need access to your network for streaming videos to a TV or similar uses cases.

If you want Facebook on your iPhone to call someone then Apple provides a Phone API.

If you want Facebook on your iPhone to stream to your TV then Apple should provide an Apple TV API for Facebook to use.

There is no reason whatsoever for Facebook to have any direct access to anything on your phone whether its your sensors, your microphone, your video, your network.